Arlington National Cemetery
Arlington National Cemetery is the largest cemetery in the United States National Cemetery System, one of two maintained by the United States Army. Over 400,000 people are buried in its 639 acres. Arlington National Cemetery was established on May 13, 1864, during the American Civil War after Arlington Estate, the land on which the cemetery was built, was confiscated by the U.S. federal government from the private ownership of Confederate States Army General Robert E. Lee's family following a tax dispute over the property.